C Program to Calculate Area and Circumference of Circle. The area of a circle is the number of square units inside that circle. The formula for calculation of area of circle  is ArearIn above formula,  r shows the radius of circle while is a Greek letter pronounced as PI. Armstrong Number Program In Cpp' title='Armstrong Number Program In Cpp' />The circumference of a circle is the distance around that circle. The formula for calculation of circumference is Circumference 2r. C Code to Calculate Area and Circumference of Circle includelt iostream. PI3. 1. 4. float radius,area,circum. Enter radius of circle. PIradiusadius. PIadius. Area of circle lt lt arealt lt endl. How to Delete iCloud Account Without Entering Password Before Selling iPhone. List of well known, registered, and dynamicprivate ports. Service Name and Transport Protocol Port Number Registry Last. SusieArmstrong. Program bftp 152 udp. C Programs If you really want to learn programming then do attempt C programs before watching its solution. Builder Guide To Accounting Pdf Download. Do not give up too early, give time to yourself. When. Output of program When cpp object is created default constructor is called and when java object is created constructor with argument is called, setName method is. Satellite TV News for the Asia Pacific Region. International Climate and Environmental Change Assessment Project ICECAP is a portal to climate related information for elected officials and staffers, journalists. The Registered Disability Savings Plan RDSP is a longterm savings program designed to help Canadians with disabilities and their families save for the future. Circumference of circle lt lt circum. Code Explanation The above program is used to calculate the area and circumference of a circle for a given radius. This program is based upon float type variables as we want the program to work with numbers containing decimal points. First we declared PI variable and initialized it to 3. Vapor Clean Desiderio User Manual on this page. Then we declared three more variables. Ubc7Fcgltds/UkBSA_EnkmI/AAAAAAAAACo/zmbC290VYiQ/s1600/find-Armstrong-number-in-cpp-example-code.GIF' alt='Armstrong Number Program In Cpp' title='Armstrong Number Program In Cpp' />One for user input and two for storing results. Recommended reading Program To Find Area and Perimeter of Rectangle in CAs program starts its execution, it asks the user to enter the radius of circle and  stores the input in float type variable radius. After that it calculates area and circumference of circle. In the form of C coding,  the formulae for area and circumference of circle are as follows Area r. Circumference 2r. Output If you liked this article, then please consider sharing it with your friends and leaving a comment below. You can also Click Here To Download Exercise Files.